Yahoo has demanded licensing fees from Facebook for use of its technology.
Australian court on Wednesday overturned an earlier ruling that favored Apple`s allegations Samsung had copied its iPad and iPhone.
Oracle had sued Google in August 2010, claiming that the company`s Android system infringed Java patents.
Samsung first delayed launch of Galaxy Tab 10.1 earlier this month following an agreement with Apple at an earlier court hearing.
In a global intellectual property battle, Apple has also sued Samsung in the US, Australia & elsewhere.
In June, a trade judge said HTC infringed two other Apple patents.
Day in Pics: 29th August
August 29, 2014
Famous Ganesh Pandals in Mumbai